<template>
  <div class="login-container" style="background: linear-gradient(to bottom,#2d3a4b, #6c8db8);">
    <el-form ref="loginForm"  class="login-form" auto-complete="on" label-position="left" style="background: rgba(255, 255, 255, 0.1); border-radius: 30px; box-shadow: 0px 6px 10px rgba(0, 0, 0, 0.1); padding: 100px 50px; margin-top: 100px;">
      <!-- 添加video元素用于显示摄像头内容 -->
      <div class="title-container">
        <h3 class="title">人脸识别登录</h3>
      </div>
      <video ref="videoElement" autoplay style="width: 100%; height: auto;"></video>
      <div class="button-container">
<!--        <a @click="goBack"> 返回账号登录 </a>-->
        <el-button :loading="loading" type="primary" class="custom-button" style="background: linear-gradient(to right, #6c8db8, #2d3a4b);border: none;" @click="goBack">返回账号登录</el-button>
      </div>
    </el-form>
  </div>
</template>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js"></script>

<script>
import * as THREE from "three";
import Net from "vanta/src/vanta.net";
import * as teacher from '@/api/adm/teacherAdmin'
export default {
  name: "MyFace",
  data() {
    return {
      username: "",
      password: "",
      msg: "",
      loading: false,
    };

  },
  methods: {
    // goNext() {
    //   this.$router.push({ path: "/school" });
    // },
    goBack() {
      this.$router.push({ path: "/login" });
    },
    startCamera() {
      navigator.mediaDevices
        .getUserMedia({ video: true })
        .then((stream) => {
          this.videoElement.srcObject = stream;
        })
        .catch((error) => {
          console.error("Error accessing camera:", error);
        });
    },
    takePhoto() {
      // 获得Canvas对象
      let canvas = document.createElement("canvas");
      let ctx = canvas.getContext("2d");
      canvas.width = this.videoElement.videoWidth;
      canvas.height = this.videoElement.videoHeight;
      ctx.drawImage(this.videoElement, 0, 0, canvas.width, canvas.height);
      // toDataURL --- 可传入'image/png'---默认, 'image/jpeg'
      let img = canvas.toDataURL();
      console.log("img-----", img);

      /**
       *  this.$http({
       *         url: this.$http.adornUrl(`/face/face-login`),
       *         method: "post",
       *         data: this.$http.adornData(img, false, "json"),
       *       })
       */
      teacher.faceLogin(img).then((response) => {
        if (response.code != 20000) {
          this.$message.error(response.data.message);
        } else {
          this.$message.success(response.data.message);
          this.$router.push({ path: "/dashboard" });
          // 关闭摄像头
          let stream = this.videoElement.srcObject;
          let tracks = stream.getTracks();
          tracks.forEach((track) => track.stop());
        }
      });
    },
  },
  mounted() {
    this.videoElement = this.$refs.videoElement;
    this.startCamera();
    setTimeout(() => {
      this.takePhoto();
    }, 3000); // 2000毫秒后自动执行takePhoto方法
  },
};
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg:#283443;
$light_gray:#fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .login-container .login-form[data-v-37dfd6fc] {
    border: 10px solid #fff;
  }


  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg:#2d3a4b;
$dark_gray:#889aa4;
$light_gray:#eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
}
.button-container {
  display: flex;
  justify-content: space-between;
  width: 100%;
  margin-bottom: 30px;
}

.custom-button {
  flex: 1; /* 使按钮等分空间 */
  margin-right: 0px; /* 可以根据需要调整按钮之间的间距 */
  /* 如果需要调整按钮的其他样式，可以在这里添加 */
}
</style>
